This problem explains why metal money has circulated not in lumps but as coins, with a regulated amount of metal in each coin.
Controlling the rate at which coins were created, he said, meant there would never be a surge or shortfall in the number of bitcoins in circulation, either one of which could rapidly change the value of each coin.
After each call, Gates is shown checking the coin slot for loose change.
Personal information is, of course, the coin of the Facebook realm, and each user determines how little or much to divulge.
Because of the logistical difficulties of dealing with large amounts of money in the form of metals, the Treasury began issuing Gold Certificates and Silver Certificates each redeemable in the respective metal, initially in coin but later in bullion.
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Did you know she tapes a gold coin in the bottom of her shoe before each runway show?
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The protocol that defines this block-to-coin ratio reduces the reward given for finding each block every time 210, 000 blocks have been found.
Around it, for each man who went to the war, he nailed a coin.
Instead of each denomination containing precious metal, only one higher-denomination coin would do so.
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Game theory is used to understand how decisions are made in fields as diverse as economics and evolutionary biology, and even for a game as simple as coin-flipping it can yield a strategy that gives each player the best chance of winning (or, at least, of coming out even).
Unless you believe this special octopus has the gift of foresight, each pick had a 50-50 shot, as good as flipping a coin.
Its trade association calculates that more than 90% of Europe's 3.2m machines are coin-operated, and that it will take at least an hour to adapt each for the new coins.
Yet, for each toss, the odds of landing on heads remain a very steady 50%, regardless of how often the coin landed on heads for the previous 10 tosses.
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